Not my fave place to go, but I do come when I'm too lazy to walk to Mashion Bakery.
The buns are bigger than the other HongKong bakeries in the area, but the prices are much more expensive as well (Usually $0.70/bun as opposed to $0.33/bun). It's really more worth it to go elsewhere.
Quality varies from poor to mediocre. Because the bun-size is different, the bread to filling ratio is not as great compared to other places. The bread isn't as airy and light and can be a bit dry at times (I think it has to do with the freshness...) Also they decreased the varieties of buns they have now because they turned half of the store into a hot food area.
Plus side? The cashiers are nice, they're open later than DingDong/Mashion, and no tax!
If you do want to give this place a try, get the BBQ pork ($0.70/bun) or Pineapple coconut buns ($0.50/bun). However, I'd rather take the extra steps to go elsewhere.